MASTER'S HOOF BLEND 3.75LB, Master's Hoof Blend is one of the richest sources of biotin (20 mg/oz), with exceptionally strong levels of the essential amino acids methionine (1,800 mg/oz) and lysine (1,500 mg/oz). Also contains a generous supply of structural sulfur, a full array of bioavailable chelated trace minerals, B6, a 6-culture direct-fed microbial complex, highly palatable alfalfa meal, brewer's yeast & soybean oil base. Feed 1 oz daily.